One of the terrorists who slaughtered 14 people at a California office’s holiday party was furious that her Muslim husband had to attend the festive luncheon, which was studded with Christmas decorations, police said.

Days before San Bernardino health inspector Syed Farook and his wife, Tashfeen Malik, launched their grisly terror attack on the county health department’s holiday celebration, Malik wrote online that she didn’t feel it was appropriate to mix work and holidays.

“She didn’t think that a Muslim should have to participate in a non-Muslim holiday or event,” San Bernardino police chief Jarrod Burguan told ABC News of Malik’s online terror prelude.

.

Tashfeen Malik (l.) and Syed Farook shot and killed 14 people at an office holiday party last year.